With the recent changes, perhaps we should discuss and vote about this question?
Feel free to improve vote answers (those that start with a bold sentence) or add new ones.
No, it's useful to have this as a normal/meta tag, because of one of the following reasons:
The 6-Q guidelines aren't there to enforce questions to be about [experience].
Feel free to add reasons here, discuss these in the comments.
Yes, most questions will be about experience thanks to the 6-Q enforcement notice.
No, it isn't useful to have this meta tag, because: